PWK30/C6430 Hot Tub Filter


This replacement filter cartridge is for use in hot tub & spa water, proper maintenance of your hot tub filter will help to keep your water crystal clear! Please see our short video explaining one of the methods you can use?to keep your filters clean below:

In stock

SKU: ACFTOL-XXC-643001 Category: Tags: , ,


 Proudly offering compatibility with virtually any above-ground spa available today, it actively supports flexible installation on any side of your spa with its unique undermount installation plate, requiring only 18 inches of clearance.

Whether your spa is square, rectangular, octagonal, or round, the Essentials Cover RX seamlessly fits without the need for drilling into your spa cabinet. Actively supporting your spa cover, it eliminates any stress on the center cover seam and extends the cover’s lifespan.

Capable of being operated by a single user from any chosen position—whether from the side, back, or even inside the spa—the Cover RX offers unparalleled versatility. It maintains its position as the most comprehensive spa cover lifter available.

Please note: These cover lifters are not intended to support the weight of a waterlogged or heavy cover and may bend if used with them.

We make every attempt to despatch goods as soon as payment is received. Goods ordered before 1pm will be sent out on the same day. Our couriers deliver from MON-FRI anything ordered at weekends or bank holidays will be posted on the following working day. If you require delivery to the Scottish Highlands & Islands, Isle of Man, Scilly Isles, Channel Islands, Northern Ireland or outside of the UK mainland please contact us for a postal quote before making your purchase. Thank you.

Additional information

Bottom hole dimensions mm


Bottom type


Compatible spa brand


Diameter mm


Filbur reference


Filter reference code

C-6430, FC-3915, PWK30-4, SC712

Length mm


Sc code


Top hole dimensions mm


Top type


Unicel reference




Compatible spa model

Classic, Grandee, HotSpot Round, Hotspot Square, Jetsetter, Landmark, Prodigy, Sovereign, Summit

Width mm